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https://issues.apache.org/jira/browse/TOMAHAWK-241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hazem Saleh resolved TOMAHAWK-241.
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Resolution: Invalid
Not a bug, This scenario works fine.
> preserveDataModel=true always throws ClassCastException
> -------------------------------------------------------
>
> Key: TOMAHAWK-241
> URL: https://issues.apache.org/jira/browse/TOMAHAWK-241
> Project: MyFaces Tomahawk
> Issue Type: Bug
> Components: Extended Datatable
> Affects Versions: 1.1.1
> Reporter: Robert Thaler
> Assignee: Hazem Saleh
>
> I have created a simple DataTable with scrolling ability using DataScroller.
> I have set preserveDataModel to true.
> The first call of the page works fine. If I would like to show the next page
> of data rows I always receive the following exception:
> java.lang.ClassCastException: javax.faces.model.ListDataModel
> at
> org.apache.myfaces.component.html.ext.HtmlDataTable.updateModelFromPreservedDataModel(HtmlDataTable.java:256)
> at
> org.apache.myfaces.component.html.ext.HtmlDataTable.processUpdates(HtmlDataTable.java:242)
> at javax.faces.component.UIForm.processUpdates(UIForm.java:85)
> I take a look in the source and it seems to me that the call of
> getDataModel() is the problem. It never returns a _SerializabelDataModel.
> Souldn't it call getPreservedDataModel()?
> regards
> Robert
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